Throttle Return Spring Bracket 4412 2BBL

The Throttle Return Spring Bracket 4412 2BBL from ALLSTAR PERFORMANCE is a precision carburetor mount assembly engineered for dual-spring throttle return systems on two-barrel Holley flange carburetors. This aluminum component, finished in clear anodize, maintains consistent spring tension and throttle blade return characteristics critical to predictable idle and throttle response in high-performance and marine engine applications.

Built from lightweight aluminum and clear anodized for corrosion resistance, the bracket tolerates both freshwater and saltwater environments without degradation of mechanical function. The dual-spring configuration provides redundancy—if one spring fails, the second spring ensures the throttle blade still returns to idle, preventing throttle-stuck-open conditions that could damage the engine or create unsafe operating scenarios. The Holley flange mount interface is industry-standard, guaranteeing compatibility across a broad range of 2BBL carburetors without adapter plates or modifications. Dimensions of 6 x 1.85 x 14.2 inches position the bracket for efficient mounting in engine bays with limited clearance.

This kit serves performance builders, marine mechanics, and restoration technicians working with carbureted engines where throttle control reliability is non-negotiable. Whether tuning a street engine, outboard setup, or vintage race platform, the dual-spring design eliminates the single point of failure inherent in single-spring systems. The part is supplied as a complete kit—no additional brackets or springs required for installation on compatible 2-barrel Holley carburetors.

ALLSTAR PERFORMANCE components are widely recognized among engine builders and tuners for consistent fit and finish. The clear anodized finish on this bracket resists fading and surface oxidation better than bare aluminum, extending service life in demanding applications.